The first transatlantic real-time power system simulation is successfully performed to demonstrate the feasibility of integrating geographically distributed simulation tools, lab facilities and knowledge, in one large global laboratory (Global RT-Super Lab). Ten digital real-time simulators from OPAL-RT TECHNOLOGIES, RTDS Technologies Inc. and Typhoon HIL, Inc. located in eight leading laboratories from the US and Europe are integrated. The simulation consists of multiple AC distribution grids, an AC transmission grid, a HVDC link as well as multiple controller and power hardware-in-the-loop setups.